Improvement in heating and ventilating buildings



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N.PE'ERS. FHOTO-LITILIDGRAPHER. WASHINGTON. D. Cy

UNITED STATES PATENT OFFICE WILLIAM F. FLAGG, OF BLOOMINGION, ILLINOIS.

IMPROVEMENT IN HEATING AND VENTILATING BUILDINGS.

Specication forming part of Letters Patent No. 191,952, dated June 12, 1'77 application filed May 25, 1877.

Bloomington, in the county of McLean and' State of Illinois, have invented certain new and useful Improvements in Method of Heating and VVentilating Buildings; and I do hereby declare that the following is a full, clear, and exact description, reference being made tothe accompanying drawing, forming a part of this specification, and in which;-

' Figure l is a vertical section of a building containing my improvements. Fig. 2 is a horizontal section ofthe same.

My invention 'relates to improvements in the method of heating and ventilating`buildings; and it consists in passing the heated air from a furnace directly through pipes or tlues to the room or rooms to he heated, the cool and foul air being returned through flues to the furnace-room, where the heaviest or impure air is discharged through an exhaustflue ator near the bottom of the furnace-room into the open air, and the better portion of the air returned to the furnace-room-viz, the lighter air-is warmed by the furnace, smoke pipe, and drum, which then rises through separate radiating-dues and returned to the room or rooms being heated, all as will be. hereinafter fully described.

A in the drawing represents the furnaceroom, and B represents the `f-'urnace located therein, which is provided with an iron or brick surrounding jacket. The air is received through the cold-air duct D, and coming in contact with the furnace is heated, and passes up between the furnace and its jacket through conducting-pipes and registers into the room or rooms desired to be heated, in the usual manner. When the warm air is discharged into the room or rooms to be heated the cooler air already in said room or rooms must be expelled or drawn out, to give place to the warm or heated air. This is accomplished through registers located in the baseboards at the bottom of the room orV rooms'to be ventilated or heated, said registers connecting with foul- -air shafts or pipes constructed in the walls or partitions of the building, and through these foul-air shafts or pipes the heavier (which is the cooler and most impure-air descends, and is conducted to the furnace-room, (as'indicated and most impure air is drawn out through the exhaust-flue Gr, communicating with the furnace-room near the bottom thereof. Said exhaust-flue is located contiguous to, or built in connection with, the smoke-flue I-I, so that it is heated from said smoke-flue, whereby the air becomes raretied, which causes its ascent, thus facilitating the exhaustion of the foul air from the furnace-room into which it has been drawn, as above described. The better portions of the air which has been drawn into the furnace-room from the room or rooms being heated is warmed by the furnace, vthe smokepipe I, and drum J, and then rises through what is termed radiating-line77 K again into the upper room or rooms, to be returned again through the foul-air shafts or pipes into the furnace-room, from which the heaviest portions are expelled through the exhaust-shaft into the open air, while the better and lighter portions of the air are again warmed from the heat passing off from the furnace, pipe, and drum, and again returned to the room or rooms, thus furnishing a continuous supply of fresh heated' air from the furnace, and radiated heated air from the furnace-room.

It will therefore be perceived that my method combines the furnace system of heating rooms with the stove system, or as it' the air of a room was heated by a current of freshly warmed air coming from out of doors, passing anrleoming into contact with a furnace in the usual Way, and then being thrown into the room to be heated, and at the same time heated, as it were, from a stove in the room. The stove in a. room, however, heats the air over and over again, and keeps up a constant circulation of the same air, which in a crowded room becomes vitiated if not allowed to es cape.

By my method I bring into the room or rooms to be heated the pure air direct from the furnace, and also utilize over and over again the better portions of the air which are passed from the roomor rooms being heated into the furnace-room, where it is subjected to radiated heat, while the heavier portions of the foul air are discharged into the open air through the exhaust-shaft.

Another feature of my invention is to obvisoms L over the doors leading to the hall, and

having said halls connected by stairways and openings communicating with the dome or hclfry, or other shaft communicating with the open air from the top of the building. This,

in connection with my method of heating byv radiation and by furnace-heat, combines the best results, as regards economy, facility ot' heating, ready change of air, and complete ventilation.

I am aware that returning the heated air from a furnace, after passing from the room or roomsV being heated, back again to the furnace, and again through the roomI or rooms,

is old, and such I do 'not claim as my inven; tion; but

I claim as my invention- The method herein shown and described or heating and ventilatin g buildings, consist ing in passing the fresh heated air from the furnace direct to the room or rooms being ieated, and returning it to the furnace-room,

from which the foul air is discharged into the open air, while the better portions of the air are subjected to radiated heat, and againreturned to the room or rooms being heated, substantially as specified.

WM. F. FLAGG.

Witnesses Y THos. SLADE, JOHN MOORE. 

